Twelve stages in the sequence from the head of a frog to the head of a primitive man. Coloured etchings by Christian von Mechel after J.C. Lavater, 1797.

Ausgeführt und herausgegeben in Basel : Chr: von Mechel, [1797]

1 print : etching and aquatint, with watercolour ; image 36.5 x 22.5 cm

Stufenfolge von dem Frosche bis zum Apollo Profile. Ausgeführt ... von Chr: von Mechel nach den Ideen des berühmten Lavaters.

Accompanied by another print (this catalogue number 47556i), which continues the series by showing twelve stages from primitive man (13) to the Apollo Belvedere (24)

Stephen Feeke and Jon Wood, Against nature: the hybrid forms of modern sculpture, Leeds : Henry Moore Institute, 2008, reproduced (unnumbered page)

William Schupbach, 'Apollo and the Aztecs', Wellcome Library blog, 27 June 2016, https://wayback.archive-it.org/16107/20210312221809/http://blog.wellcomelibrary.org/2016/06/apollo-and-the-aztecs/

Wellcome Collection 47555i